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Birth Patterns in Mentally Retarded Autistic Patients
Open accessAbstract
Some studies claim to have shown that, compared to the general population, autistic children are born more often in the spring. The current study sought to replicate this finding in a large Dutch sample of mentally retarded autistic patients. Birth data for 1,031 patients with a diagnosis of "Infantile Autism" or "other psychoses with origin specific to childhood" were compared to those of the Dutch national population. Separate analyses were performed on diagnostic subgroups (i.e., infantile autism vs. other psychoses with origin specific to childhood), gender, and intelligence. No evidence was found to suggest that autism is characterized by a deviant birth pattern.
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Some studies did not find a season/month of birth effect on aggregated samples but reported seasonal deviations from the general population in autism with comorbidities such as language and developmental delay.
“Interestingly, some studies did not find a season/month of birth effect on aggregated samples but reported seasonal deviations from the general population in autism with comorbidities such as language and developmental delay [84,85].”
From Vitamin D and Autism Spectrum Disorder: A Literature Review (2016) · cites this paper as [84]
Not all studies showed an association between season of birth and risk of autism.
“Not all studies showed an association between season of birth and risk of autism [64,77,79,81,83,84,85,86].”
From Vitamin D and Autism Spectrum Disorder: A Literature Review (2016) · cites this paper as [84]
Yeates Frederiks et al. (2000) did not find an effect of season of birth on autism rate in the aggregated sample, but found a significant seasonal trend for low functioning autism (autism with IQ < 35) with increased rates for autistic births in the second quarter of the year.
“For example, Yeates Frederiks et al. (2000) did not find an effect of season of birth on autism rate in the aggregated sample, but they found a significant seasonal trend for low functioning autism (autism with IQ < 35) (increased rates for autistic births in the second quarter of the year) [84].”
From Vitamin D and Autism Spectrum Disorder: A Literature Review (2016) · cites this paper as [84]
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References 33 · Cited by 18
Research works printed but not linked: 3
- Elwood, J. H. (1970). Anencephalus in Belfast: Incidence and secular and seasonal fluctuations. British Journal of Social Medicine, 24, 78–88.
- Jongbloet, P. H., Bezemer, P. D., Erkelen-Zwets, A. H. J. van, & Theune, J. (1982). Seasonality of births and pre-ovulatory over-ripeness ovapathy. Chronobiology, 9, 273–280.
- L. R. Z. (1996). Jaarboek verstandelijke gehandicaptenzorg 1995 [ yearbook of care for the mentally handicapped, 1995]. VGN: Utrecht, the Netherlands.
Metadata
- Authors
- Yeates-Frederikx, M. H. M., Nijman, H., Logher, E., & Merckelbach, H. L. G. J.
- Affiliations
- Maastricht University (NL)
- Corresponding author
- Yeates-Frederikx, M. H. M.
- Venue
- Journal of Autism and Developmental Disorders
- Published
- 2000-06
- Volume
- 30
- Issue
- 3
- Pages
- 257-262
- ISSN
- 0162-3257 (ISSN-L)
- 1573-3432
- OpenAlex
- W2100245860
- Cited by
- 18
- References
- 33
- Citations by year
- 2023: 1 · 2021: 1 · 2016: 1 · 2014: 1 · 2012: 1
- FWCI
- 0.58
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- Journal of Autism and Developmental Disorders (publishedVersion)
- PubMed (publishedVersion)
- Research Publications (Maastricht University) (publishedVersion, other-oa)
- Research Publications (Maastricht University) (submittedVersion, other-oa)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Sexual Differentiation and Disorders
- Keywords
- autism spectrum disorder, infantile autism, birth seasonality, intellectual disability, replication study, intelligence, gender differences
- MeSH terms
- Adolescent, Adult, Aged, Autistic Disorder, Birth Rate, Female, Humans, Male, Intellectual Disability, Middle Aged, Netherlands, Seasons, Incidence
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